AOD-9604 dosage calculator: what the math actually gives you

Last updated 2026-07-24

What does an AOD-9604 dosage calculator actually calculate?

It's simple arithmetic dressed up as a tool. You put in three numbers: the total peptide in the vial (usually 2mg, 5mg, or 10mg), the volume of bacteriostatic water you add, and the dose you're targeting in micrograms. The calculator spits out how many units to draw on a 100-unit insulin syringe (the standard U-100 syringe used for subcutaneous peptide injection). That's it. There's no biology in the math. A calculator can tell you that a 5mg vial reconstituted with 2mL of bacteriostatic water gives a concentration of 2.5mg/mL (2,500mcg/mL), and that a 300mcg dose means drawing 12 units. It cannot tell you whether 300mcg is the right dose, because no dose-response relationship for fat loss has been established in humans with any consistency. Think of it as a unit converter, not a clinical decision tool. The real question, whether AOD-9604 does anything meaningful for body fat at any dose, is a separate one, and the honest answer is complicated. More on that below. If you want the underlying reconstitution steps written out with syringe photos and troubleshooting, see aod 9604 how to reconstitute.

How do you calculate AOD-9604 reconstitution and dosage by hand?

The formula has two steps: figure out concentration, then figure out volume per dose. Step one, concentration: divide total peptide (mcg) by total diluent volume (mL). A 5mg vial (5,000mcg) mixed with 2mL of bacteriostatic water gives you 2,500mcg/mL. Step two, dose volume: divide your target dose (mcg) by the concentration (mcg/mL), then multiply by 100 to get insulin syringe units (since a 1mL U-100 syringe reads 100 units per mL). Worked example: target dose 250mcg, concentration 2,500mcg/mL. 250 ÷ 2,500 = 0.1mL. 0.1mL × 100 units/mL = 10 units on the syringe. Here's a quick reference table for common vial sizes and a few frequently discussed doses. These numbers are pure math, not a recommendation.

For a longer breakdown of dosing schedules and how people commonly split doses across a day, see aod 9604 dosage.

Does the dose matter if the human trial data doesn't support the peptide?

This is the part a calculator can't answer, and it's the part that actually matters. AOD-9604 (a 15-amino-acid fragment of human growth hormone, corresponding to residues 176-191 of the hGH molecule, sometimes called the hGH fragment 176-191) was developed on the idea that it might carry the fat-metabolizing activity of growth hormone without the growth-promoting or blood-sugar side effects. A 2004 review of AOD-9604's metabolic profile in Current Opinion in Investigational Drugs describes this fragment-based rationale and its proposed lipolytic mechanism, distinct from full-length hGH ^[1]. The problem is what happened when it reached human obesity trials. A 2006 review of obesity drugs in clinical development covers AOD-9604 among a field of compounds being tested for weight loss at that time, and the peptide's later-stage human results did not hold up as a differentiated weight-loss therapy ^[2]. The company that developed it, Metabolic Pharmaceuticals (later Lipotek), ran Phase IIb trials in the mid-2000s. The topline result reported publicly was that the treatment groups didn't separate convincingly from placebo on fat loss, which is why AOD-9604 was never submitted for FDA approval as an obesity drug and no product appears under this indication in the Drugs@FDA database ^[3]. So when someone asks 'what's the right AOD-9604 dosage for weight loss,' the honest answer is that there isn't a validated one, because the trials that would have established a working dose-response for fat loss didn't produce a clean signal. A calculator can give you 300mcg as clean math. It can't give you 300mcg as a clinically proven number, because that number doesn't exist in the published record. If you're deciding whether to use this peptide at all, read aod 9604 peptide first, before you get to the syringe math.

What is a typical AOD-9604 dosing range people use, and where does it come from?

Most protocols circulating online cite doses in the 250mcg to 500mcg range, once or twice daily, often on an empty stomach. This range isn't derived from a published, replicated efficacy trial. It traces back loosely to the Phase II dosing used by Metabolic Pharmaceuticals in their obesity studies, filtered through years of forum repetition and vendor marketing copy. A range being 'commonly used' is not the same as a range being 'proven effective.' That distinction gets lost fast once a number shows up in enough dosage calculators and starts looking official by repetition alone. If you're going to use this peptide at all, the more defensible approach is to work from a source that has actually reviewed the trial history with you, rather than picking a number because it's the median of what forums repeat. A provider that reviews your case against the real trial record, at AOD-9604 Co, is a more honest starting point than guessing from a calculator's default field.

How much bacteriostatic water should you use to reconstitute AOD-9604?

There's no single correct volume. It's a tradeoff between injection precision and vial life. More diluent (say 3mL in a 5mg vial) gives you a lower concentration, meaning you draw a larger syringe volume per dose. That makes small dosing errors less impactful in percentage terms, but it also means the vial won't stretch as many doses before you're topping up water again mid-course. Less diluent (say 1mL in the same vial) concentrates the peptide, so you're drawing tiny syringe volumes, like 2 to 3 units, for a typical dose. Tiny draws are harder to measure accurately on a standard insulin syringe, where the smallest reliable gradation is usually 1 unit. A practical middle ground many people land on is 2mL for a 2mg or 5mg vial, which keeps typical doses in the 10 to 25 unit range on the syringe, easy to read, easy to draw consistently. Bacteriostatic water (water with 0.9% benzyl alcohol as a preservative) is standard for multi-dose reconstitution because the preservative slows bacterial growth across repeated needle entries into the same vial. Sterile water without a preservative is typically used only for single-use vials, since it doesn't carry the same antimicrobial protection across multiple draws.

How long does reconstituted AOD-9604 last, and does storage affect the calculator's numbers?

Once mixed, peptides in bacteriostatic water are generally kept refrigerated (not frozen) and used within roughly 20 to 30 days, a range commonly cited by peptide suppliers and compounding literature for benzyl-alcohol-preserved reconstitutions, though exact stability depends on the specific peptide and storage conditions. The calculator's concentration number stays mathematically constant regardless of how long the vial sits, assuming no evaporation or degradation. But that's exactly the gap between math and reality: if the peptide has degraded in the vial, the calculator still tells you '12 units equals 300mcg' when the actual active peptide delivered may be lower. There's no home test to check peptide degradation, which is one more reason the calculator's output is a starting estimate, not a guarantee.

Is AOD-9604 legal to buy, and does that affect dosing accuracy?

This matters for dosing because legal sourcing status affects what's actually in the vial you're calculating from. AOD-9604 is not on the FDA's current list of bulk drug substances approved for compounding under Section 503A of the Federal Food, Drug, and Cosmetic Act [21 U.S.C. 353a], and it does not appear on the 503A Bulks List at 21 CFR 216.23 or the 503B Bulks List at 21 CFR 216.24 ^[4][5]. The FDA's own bulk drug substances page for 503A explains the process by which substances get added to or kept off that list, and AOD-9604 isn't there ^[6]. What that means practically: a legitimately operating US compounding pharmacy generally can't compound AOD-9604 into a prescription product the way it can with some other peptides. Anything sold as 'research chemical' AOD-9604 falls outside that regulated compounding pathway, and purity, concentration, and even correct identity of the peptide in the vial are not independently verified the way an FDA-regulated drug product would be. A dosage calculator is only as good as the number you feed it for 'mg per vial,' and if that number on the label isn't accurate, every downstream unit calculation is wrong too, no matter how careful the math looks. For sourcing questions specifically, see aod 9604 peptide for sale.

Will AOD-9604 show up on a drug test or affect hormone testing?

A 2013 study in Drug Testing and Analysis specifically examined whether AOD-9604 interferes with the WADA hGH isoform immunoassay, the test World Anti-Doping Agency labs use to detect growth hormone doping, and found that AOD-9604 does not influence that immunoassay ^[7]. This is a narrow, specific finding: it addresses one detection method, not a broad claim about detectability in every context. Separately, several analytical chemistry papers have looked at how peptide drugs like AOD-9604 get detected in doping control more generally. A 2014 review in the Journal of Pharmaceutical and Biomedical Analysis covers analytical approaches for detecting emerging therapeutics and non-approved drugs in doping controls ^[8], and a 2014 review in Expert Review of Proteomics covers detection strategies for peptidic drugs and analogs in sports doping ^[9]. A 2016 paper in the Journal of Separation Science describes a direct urine injection method combined with liquid chromatography and ion mobility mass spectrometry for screening peptides under 2 kDa, a class that includes fragments like AOD-9604 ^[10]. If you're subject to competitive drug testing under WADA rules, don't treat 'doesn't affect this one immunoassay' as 'undetectable.' Detection methods evolve, and AOD-9604 remains a substance of interest in anti-doping analytical research specifically because it's a growth hormone fragment.

How does AOD-9604 dosing compare to other peptides used for similar goals?

This is where the dosage calculator conversation usually should end up, because dose only matters if the underlying compound has evidence behind it. AOD-9604's own trial record shows weight-loss results that didn't separate convincingly from placebo in the obesity studies that got it furthest along ^[2]. That's a different situation from, say, tesamorelin, which has actual FDA-approved indication data behind it for a specific population (HIV-associated lipodystrophy). If you're choosing between the two based on evidence quality rather than dosing convenience, the comparison is worth reading in full at aod 9604 vs tesamorelin. More broadly, recent reviews have looked at peptide therapeutics across musculoskeletal and orthopedic use cases rather than fat loss specifically. A 2026 review in the Journal of the American Academy of Orthopaedic Surgeons Global Research & Reviews covers therapeutic peptides in orthopedic applications, including challenges and future directions for the field ^[11]. A 2026 review in Sports Medicine covers the safety and efficacy of approved and unapproved peptide therapies used for musculoskeletal injuries and athletic performance ^[12]. Neither of these is a weight-loss trial, but they show where the more active peptide research interest currently sits, and it's not primarily in AOD-9604 for fat loss.

What are the practical risks of getting the dose calculation wrong?

A math error in reconstitution mostly changes how much peptide you're injecting per shot, not whether the peptide works. That's an important distinction, but it doesn't make the error harmless. Drawing double your intended dose because you miscalculated concentration means you're injecting more of an unregulated, unapproved-for-this-use compound than you meant to, with no established safety margin data to fall back on. Drawing half your intended dose just means you've wasted product and possibly convinced yourself the peptide 'doesn't work' at a dose that was never actually delivered. The more common real-world error isn't the arithmetic, it's mixing up mg and mcg. A vial labeled '5mg' and a target dose written as '500mcg' are off by a factor of 1,000 if you drop a decimal or unit somewhere. Always write out units explicitly (mcg, more than a bare number) on every step of your calculation, and double check that your calculator's input fields match the units on your vial label.

What should you actually do with the calculator's output?

Use it to convert units accurately. Don't use it to validate a treatment decision. If you've already decided, after reading the trial record honestly, that you want to try AOD-9604, the calculator gets you from 'vial label' to 'syringe units' correctly, which matters for basic injection safety and consistency. What it can't do is tell you that the dose it calculates will produce fat loss, because no published human trial has established that reliably at any dose ^[1][2]. The more useful move, if you're serious about doing this responsibly, is working with a provider that reviews your situation against the actual evidence rather than a vendor page selling a protocol. AOD-9604 Co works with a provider-reviewed pathway and names its fulfilling pharmacy partner rather than shipping unlabeled research vials, which at minimum solves the 'is the mg on the label accurate' problem that undermines every dosage calculator otherwise. For side effect concerns before you start any dosing schedule, read aod 9604 peptide side effects.

Frequently asked questions

What is the standard AOD-9604 dosage for weight loss?

There isn't a clinically validated standard dose. Ranges circulating online (commonly 250 to 500mcg daily) trace back to Phase II obesity trial dosing, but those trials didn't show weight-loss results that separated convincingly from placebo ^[1][2], so no dose has been established as effective.

How do I calculate AOD-9604 units for an insulin syringe?

Divide vial strength (mcg) by diluent volume (mL) to get concentration. Divide your target dose (mcg) by that concentration, then multiply by 100 for units on a U-100 insulin syringe. Example: a 5mg vial in 2mL BAC water is 2,500mcg/mL; a 250mcg dose is 10 units.

How much bacteriostatic water do I add to a 5mg AOD-9604 vial?

Common practice is 2 to 3mL, which keeps typical dose draws in an easily readable 10 to 20 unit range on a standard insulin syringe. There's no single required volume; it's a tradeoff between draw precision and how many doses the vial yields before running out.

Does AOD-9604 dosage affect whether it works for fat loss?

The dose amount is secondary to the bigger issue: the human obesity trials for AOD-9604 didn't show weight-loss results clearly better than placebo ^[2]. Adjusting dose within commonly used ranges doesn't address that underlying evidence gap.

Is there an official AOD-9604 dosing calculator recommended by a medical body?

No. AOD-9604 isn't FDA-approved for any indication and doesn't appear in the Drugs@FDA database ^[3], so there's no official dosing guidance from a regulatory body. Calculators found online are unit-conversion tools built from vendor and forum-sourced ranges, not clinical guidelines.

Can I legally buy AOD-9604 from a US compounding pharmacy?

AOD-9604 isn't on the FDA's 503A Bulks List (21 CFR 216.23) or 503B Bulks List (21 CFR 216.24), the lists of substances approved for compounding ^[4][5]. That limits legitimate compounding pharmacy access compared to peptides that are on those lists.

How long can reconstituted AOD-9604 be stored?

Peptides reconstituted with bacteriostatic water are typically refrigerated and used within about 20 to 30 days, based on general peptide handling practice tied to the benzyl alcohol preservative's antimicrobial window. Exact stability isn't independently verified for AOD-9604 specifically since it lacks FDA-regulated product data.

Will AOD-9604 show up on a growth hormone drug test?

A 2013 study found AOD-9604 does not influence the WADA hGH isoform immunoassay specifically ^[7]. That's a narrow finding about one test method, not a guarantee of general undetectability; other analytical methods for peptide detection continue to be developed ^[8][9][10].

What's the difference between an AOD-9604 dosing calculator and a reconstitution calculator?

They're usually the same tool wearing two names. 'Reconstitution calculator' emphasizes the mixing step (vial strength plus diluent volume equals concentration); 'dosing calculator' emphasizes converting a target mcg dose into syringe units. Both are unit math, not clinical guidance.

How much AOD-9604 is in a typical vial sold online?

Common vial sizes marketed are 2mg, 5mg, and 10mg. Because AOD-9604 isn't FDA-regulated for this use, the mg amount on a vial label from an unverified seller isn't independently confirmed the way an approved drug product's label would be ^[3][6].

Should I use a dosage calculator before starting AOD-9604?

A calculator helps with the mechanical conversion from mg to syringe units, which reduces injection errors. It should not be treated as evidence that a given dose is effective, since the placebo-controlled obesity trials for AOD-9604 didn't show convincing separation on weight loss at any dose tested ^[1][2].

What mistake do people most often make with AOD-9604 dosage math?

Confusing mg and mcg. A 5mg vial and a 500mcg target dose are separated by a factor of 1,000; dropping a decimal or misreading the unit on the vial label is the most common real-world dosing error, more common than any flaw in the calculator's formula itself.

Sources

1. PubMed, Current Opinion in Investigational Drugs (2004): Describes AOD-9604's proposed metabolic/lipolytic mechanism as an hGH fragment distinct from full-length growth hormone
2. PubMed, Current Opinion in Investigational Drugs (2006): Reviews obesity drugs in clinical development including AOD-9604, whose weight-loss trial results did not separate convincingly from placebo
3. FDA, Drugs@FDA database: No AOD-9604 product is listed as FDA-approved for any indication in this database
4. eCFR, 21 CFR 216.23 (503A Bulks List): AOD-9604 does not appear on the FDA's 503A Bulks List of substances approved for compounding
5. eCFR, 21 CFR 216.24 (503B Bulks List): AOD-9604 does not appear on the FDA's 503B Bulks List of substances approved for outsourcing facility compounding
6. FDA, Bulk Drug Substances Used in Compounding Under Section 503A: Explains the FDA process for evaluating and listing bulk drug substances for 503A compounding
7. PubMed, Drug Testing and Analysis (2013): AOD-9604 does not influence the WADA hGH isoform immunoassay used in anti-doping testing
8. PubMed, Journal of Pharmaceutical and Biomedical Analysis (2014): Reviews analytical approaches for detecting emerging therapeutics and non-approved drugs in doping controls
9. PubMed, Expert Review of Proteomics (2014): Reviews detection strategies for peptidic drugs, drug candidates, and analogs in sports doping
10. PubMed, Journal of Separation Science (2016): Describes a direct urine injection LC-ion mobility mass spectrometry method for screening peptides under 2 kDa
11. PubMed, JAAOS Global Research & Reviews (2026): Reviews therapeutic peptides in orthopedic applications, including challenges and future directions
12. PubMed, Sports Medicine (2026): Reviews safety and efficacy of approved and unapproved peptide therapies for musculoskeletal injuries and athletic performance